I am synchronising geth using
geth --datadir "<mounted large drive>" --fast --cache 1024 --rpc --rpcaddr <publicip> --rpcport 8545
chaindata folder in the mounted drive is increasing in size (7GB after a few hours), so I am confident that
-datadir is working... But for some reason my home drive is filling up at about the same pace.
I don't really have any idea where the data is coming from. This is a ubuntu box only for this geth node so there are no other programs running.
Geth eventually stops with out of diskspace, not because the datadir is full but the home drive is full (it's only 25GB). There is still >100GB available on mounted external drive when it stops.
In the above command line, is there anything obvious to suggest what is putting data on the home drive? I'm not mining so it's not